Improvement in boring and tenoning machines



3 Sheets-Sheet 2 A.. H. GETTEL. Borinugand Tanning-Machines.

NO. 146,668. Patentedln. 20,1874.

A. H. GETT'EL. Boring and Tenonng-Machines@i L NOQ146` 668,PatentedJanQZO,

"Mine/5.3365;

UNITED STATES AMos H. GETTEL, on LEBANON, PENNSYLVANIA.

IMPRovEMEN-r IN BORING AND TENONING MAjHllNs. y

, Specification forming part of Letters Patent No. 146,668, datedJanuary 20, 1874; application filed March 8,1873. i

To all whom it may concern.' Be it known that I, AMos H. GETTEL, ofLebanon, in the county of Lebanon and State of Pennsylvania, haveinvented a new and valuable Improvement in Boring and Tenoning Machines5 and I do hereby declare that the following is a full,l clear, andexact descrip tion of the construction and 'operation of the same,reference being had to the annexed drawings, making apart of thisspeciiication, and to the letters and figures of reference markedthereon.

Figure l of the drawings is a representation of a side elevation of myimproved boring and tenoning machine. Fig. 2 is another side elevation.Fig. 3 is a top view. Fig. 4 is a view of the side opposite to thatshown in Fig. 2.

My invention relates to certain improvements in boring and tenoningmachines; and it consists in 'a pair of saws attached to plates capableof lateral adjustment, working in connection with an adjustable cutteror plane bit, for makingthe tenon; a combination of devices for raisingand lowering the frame which carries the tenoning devices.

In the drawing, A represents the stand or platform which supports themachine, consist in of a horizontal base with a vertical standard, towhich the working parts are attached. B is a vertical guide-frame,attached to the standard, in which works a plate, C, having four bars,o, projecting horizontallyfroln the outer sidetwo near the upper and twonear the lower edge. These bars have horizontal grooves formedtransversely near their outer ends, on the lower sides of the upper barsand the upper sides of the lower bars, which grooved bars serve assupports and guides for a rectangular frame, D, which slides therein.About midway between the bars o are two similar bars, o2, in the outerends of which are bearings for a shaft, E. On the outer end of the frameD is a circular plate, F, attached rigidly to the frame at right anglesthereto. Resting against the face of the circular plate F is acruciforln plate, G, the arm z of which extends upward a distance aboutequal to three `times the length of one of the other three arms, and hasa slot, g, running nearly its entire length, in which slot slides ablock, h, in which .is journaled the upper endof the auger-shaft H,which works Vin .bearings` 11.1 h2 attached to the plate Gr.` A pulley,e, is keyed to the shaft E between the bars o2,s`o that the shaft mayslide longitudinally with the frame i D without changing the locationofthe pulley.

The outer end of the shaft E is journaled in the end of the frame D,passing through the plate F to the outer face of the plate G, where itcarries a miter-wheel, e2, which meshes into a miter-wheel, h3, keyed tothe augenshaft H. Suspended from the shaft E, between thebars c2,is aband-tightener, J, carrying two pulleys at its free end. lever, I, whichengages with notches in the lower rail of the frame D, for the purposeof shifting said frame longitudinally. The cru-` i ciform-plate Grengages with the circular plate `F by means of clamps .02,7 on the endsof two of its arms, provided with set-screws g3. J our-` naled in anextension of the upper bearingblock h1 of the auger-shaft, and theupperarm of the plate G, is a shaft, K,`provided with a handle, k, forturning it. `On this shaft is a pulley, k1, and just above itis a secondpulley, k2, journaled in the plate Gnear the lower end of the slot g,and near the upper end of the slot g is a third pulley, lo?. A band orcord,

7a4, has one end attached to the block h, and

passes up over theV pulley k3, down under the pulley k2, around thepulley 761, and thenceto the block h, where the other end is secured. Onthe inner side of the plate C isa rack, c3, which engages with a pinion,c4, on a shaft, c5, journaled in the sides ofthe guide-frame B,

and having a hand-wheel, c6, on the outer end.

The circular frame F has degrees andfractions thereof marked on itsface,and the plate G, turning on its center,'can be adjusted to any desiredangle by means of the clamps g2 and set-screws g3. The kauger-shaftHbeing `attached to the plate Gr, the` auger is made to bore in anydirection, corresponding with the f angle of inclination of the plate Gon its center.

Pivoted to the plate C is a` By means `of the pinion o4 engaging" with`the rack 03,the plate C may be raised and lowered in the guide-frame tocorrespond with the thickness of the material to be bored, being held atthe desired points by any suit-able devices.

By means of the band or cord 7a4 attached to the block h, and passingaround the pulleys kl c2 7c3, the auger-shaft H is raised and lowered byturning the crank-handle lo on the shaft K, feeding the auger to thework and raising it therefrom, as" desired,independently of theoperation of the rack c3 and pinion c4, connected with the plate C, andwithout .affecting the angular inclination of the augershaft.

By means of the lever I engaging with the notches in the lower rail ofthe frame D, said frame is shifted longitudinally in the grooved bars o,so as to adjust the auger to the desired points in the material to bebored.

The table L, which supports the material to be worked is placed at oneside of the standard A, so as to accommodate both the boring andtenoning mechanisms. The table rests upon a platform, L2, attached tothe outer ends of two bars, Z, the inner ends of which slidehorizontally in flanged or dovetailed grooves m, on opposite sides ofthe standard A, so that the table may be moved nearer to or farther fromthe standard, as may be desired. This movement of the table isaccomplished by'means of a screw-shaft, N, engaging with a nut, O,seated in a cavity in the standard A, and provided with a hand-wheel, a,for turning it. The longitudinal movement of the table is accomplishedby means of a pinion, p, engaging with a rack, q, on the under side ofthe table, and operated by a handwheel on the pinion-shaft, said shaftbeing journaled in bearings attached to the platform L2, so that thetable may be shifted back and forward toaccommodate the work to bot-hthe boring and the tenonin g mechanisms. On the side of the standard Aopposite to the guideframe B is a guide-plate, R, from. the upper end ofwhich extends a horizontal arm, 0", in.

the outer end of which is journaled vertically a miter-wheel, r1, whichmeshes into a miterwheel, r2, on a shaft, r3, carrying a pulley, r4, andjournaled in the end of a curved bar,r15, which also extends from theupper end of thc plate B. Sliding vertically in this guideplate is asmaller plate, S, from which eX- tends an arm, s1, to which is attachedin a horizontal position a circular plate, S2, with degrees andfractions of degrees marked thereon. U1Tder\the circular plate S2, andconnected therewith `by`screwclamps s, is a guide-frame, S4, whichextends outward for a distance somewhat greater than the width of thetable L. Keyed to the miter-wheel r1 so as to revolve therewith, but becapable of sliding vertically therein, is a shaft, S5, which passes downthrough the circular plate S2 and guide-frame S4, and 'has a radial arm`or crank, s6, rigidly attached t0 its lower end,

which arm, s, is connected4 by a pitman, ST, to a reciprocating frame,T, Figs. l and 2, arranged to run in guides in the frame S4. On theunder side of the frame T are two transverse bars, t, to the ends ofwhich two bars, carrying saws t2, are attached by means of set-screwsworking in slots in the bars t, so as to admit of lateral adjustment.Between the saws is arranged an adjustablevcutter or plane-bit, u,attached to a block on the under side of the frame T by means of aset-screw, working in a slot in said cutter or bit, by which means itmay be adjusted to regulate the depth of cut, or may be removed andreplaced by others of different widths.

By means of the set-screws working in the slotted bars t, the saws t2maybe adjusted as to their distance apart, and to correspond with thewidth of the cutter u, so as to regulate the width of the notch or tenoncut by the saws and cutter.

Motion is communicated from the pulley r4 through the gears r1 r2 to theshaft S5, and by said shaft through the bar s6 and pitman s7 to theframe T, carrying the saws and cutter constituting the tenoning devices.

.Extending downward from the arm r is a bar, r6, to which is pivoted oneend of a lever, V, which engages, about midway of its length, with abar, fu, the lower end of which is pivoted between lugs w, projectingfrom the arm s1. The bar c has a number of holes formed in it for thereception of a pin passing through a hole in the lever V, so as toconnect it at different points, as desired. The bar passes through aslot in the lever, and the pin passes through both the lever and thebar, and thus connects them tcgether. Y

By means of the lever V and its connections, arranged as abovedescribed, the frame which carries the tenoning devices can be readilyraised and lowered to adjust it to the height or thickness of thematerial to be worked. As the guide-frame S4 is connected to thecircular plate S2 by screw-clamps, and moves in an arc of which theshaft S5 forms the center, it can be readily adjusted at any desiredangle. i Y Y I claim as new and desire to secure by Let ters Patent 1.The' combina-tion of theguideframe S4, connected with the circular plateS2 by screwclamps, and carrying the reciprocating frame T, with saws t2and cutter u attached, substantially as shown and described.

2. The combination of the saws t2 and cut ter a, adjustable in the frameT, forming the tenoning mechanism, substantially as shown and described.

Y3. In a boring and tenoning machine, the combination and arrangement ofthe lever V, pivoted to the bar r6 of the arm o", and perforated bar o:attached to the arm s1 of the vertically-adjustable plate S for raisingand lowering tliel tenoning mechanism, as shown shaft E, between thebars c2, as shown and deand described. scribed. i

4. In combination with the guide-frame s4, In testimony thatI claim theabove I have carrying a tenoning mechanism, the tableL, hereuntosubscribed my name in the presenceI adjustable longitudinally and'laterally, "as of tWo witnesses.

` c speciied. AMOS H. GETTEL.

5.l In combination With the longitudinallyl Witnesses: t sliding` frameD, carrying the boring mechan- BAssLER BOYER, ism, the band-tightener J,suspended from the ANTHONY S. ELY.

